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authorSuravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>2014-09-09 15:37:15 -0500
committerGraeme Gregory <graeme.gregory@linaro.org>2014-11-06 11:57:39 +0000
commit41726e0c6706effd5610be4d209f4656eb0af2c6 (patch)
tree85267a15ea20e4bd122b7436378e862756d31422
parent800ee2b9b078dadc8410e34ab8d7a9e2059654b9 (diff)
downloadleg-kernel-41726e0c6706effd5610be4d209f4656eb0af2c6.tar.gz
ata: ahci_platform: Add ACPI support for AMD Seattle SATA controller
This patch adds ACPI support for non-PCI SATA contoller in ahci_platform driver. It adds ACPI matching table in ahci_platform to support AMD Seattle SATA controller with following ASL structure in DSDT: Device (SATA0) { Name(_HID, "AMDI0600") // Seattle AHSATA Name (_CCA, 1) // Cache-coherent controller Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadWrite, 0xE0300000, 0x00010000) Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive,,,) { 387 } }) } Since ATA driver should not require PCI support for ATA_ACPI, this patch also removes dependency in the driver/ata/Kconfig. Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
-rw-r--r--drivers/ata/Kconfig2
-rw-r--r--drivers/ata/ahci_platform.c13
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index cd4cccbfd2ab..edb00c6ee6a3 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -48,7 +48,7 @@ config ATA_VERBOSE_ERROR
config ATA_ACPI
bool "ATA ACPI Support"
- depends on ACPI && PCI
+ depends on ACPI
default y
help
This option adds support for ATA-related ACPI objects.
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 06f1d59fa678..df2ea85495ae 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -20,6 +20,9 @@
#include <linux/platform_device.h>
#include <linux/libata.h>
#include <linux/ahci_platform.h>
+#ifdef CONFIG_ATA_ACPI
+#include <linux/acpi.h>
+#endif
#include "ahci.h"
static const struct ata_port_info ahci_port_info = {
@@ -71,6 +74,13 @@ static const struct of_device_id ahci_of_match[] = {
};
MODULE_DEVICE_TABLE(of, ahci_of_match);
+#ifdef CONFIG_ATA_ACPI
+static const struct acpi_device_id ahci_acpi_match[] = {
+ { "AMDI0600", 0 }, /* AMD Seattle AHCI */
+ { },
+};
+#endif
+
static struct platform_driver ahci_driver = {
.probe = ahci_probe,
.remove = ata_platform_remove_one,
@@ -78,6 +88,9 @@ static struct platform_driver ahci_driver = {
.name = "ahci",
.owner = THIS_MODULE,
.of_match_table = ahci_of_match,
+#ifdef CONFIG_ATA_ACPI
+ .acpi_match_table = ACPI_PTR(ahci_acpi_match),
+#endif
.pm = &ahci_pm_ops,
},
};